Siemens NXAIR Installation Instructions Manual page 52

Assembling the panels
Fastening the panels
For fastening the panels on the floor, elongated holes 60x20 mm have been provided in the cross members
inside the panel frame, both at the front and rear side of the panel frame.
Fasten each panel to the foundation at two points:
Place shims in the spaces between the panel frame and the foundation in the area of the
fastening cutouts, so that the switchgear is not distorted when it is bolted tight, and the seam
does not cover any air-filled gaps when the switchgear is welded tight.
For bolted floor fastening: Bolt the cross members inside the panel frame onto C-profiles in the
foundation using anchor bolts and shims.
Installation and fixing material with anchor bolts: Order no.: 8BX2060.
For welded floor fastening: Weld the cross members to the U-profiles in the foundation
in the area of the elongated holes 60x20 mm the bottom.
Remove any pollution that may occur during drilling or welding. Extreme cleanliness is required
during installation.
Paint welded seams to protect them against corrosion.
For panels with ventilation duct
Refasten the previously removed bottom part at the front of the ventilation duct.
✓
The panel is fastened to the foundation.
52
NOTICE
Foreign objects
Possible malfunctioning and damage to the panels caused by foreign objects.
Before closing the compartment below the ventilation duct, remove all
foreign objects, e.g.:
•
Tools
•
Unused installation material
•
Packing material
•
Cleaning material
INFORMATION
Before commissioning the panels, the area below the ventilation duct may only be
permanently closed by fixing the ventilation duct under the following conditions:
•
The area is free from foreign objects and pollution
•
The floor fixing has been properly mounted
Verify completeness and correctness of the previous assembly work in the
area. This also includes:
•
Check the tightening torques of the bolted joints, and correct the
torques if required
•
In case of welded floor fixing: Check the welded seam and the
corrosion protection
Record the proper condition of the area after bolting together, so that this is
clear without any doubt before commissioning the switchgear.
NXAIR /
≤
40 kA 110-0084.9 / 15